77 lines
3.2 KiB
Go
77 lines
3.2 KiB
Go
// Blacktip is the edge: run it on a public server that owns the IP addresses.
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package main
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import (
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"context"
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"flag"
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"log"
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"os"
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"os/signal"
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"strings"
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"git.veillax.com/Veillax/blacktip"
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"git.veillax.com/Veillax/reef/dotenv"
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"git.veillax.com/Veillax/reef/selfupdate"
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)
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// version is set at build time (deploy/build.sh).
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var version = "dev"
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func env(k, def string) string {
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if v := os.Getenv(k); v != "" {
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return v
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}
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return def
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}
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func main() {
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// secrets (tokens, DNS-provider credentials) can live in a .env file instead of the command line
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envFile := dotenv.ArgPath(os.Args[1:], ".env")
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if _, err := dotenv.Load(envFile); err != nil {
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log.Fatalf("read %s: %v", envFile, err)
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}
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hh := flag.String("hammerhead", env("BLACKTIP_HAMMERHEAD", ""), "URL of hammerhead, e.g. http://10.0.0.5:8080")
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token := flag.String("token", env("BLACKTIP_TOKEN", ""), "edge token from the hammerhead UI")
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tun := flag.String("tunnel", env("BLACKTIP_TUNNEL", ":51820"), "UDP listen address for the WireGuard tunnel (open this UDP port in your firewall)")
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data := flag.String("data", env("BLACKTIP_DATA", "./blacktip-data"), "directory for the WireGuard key and certificates")
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dockerOn := flag.Bool("docker", os.Getenv("BLACKTIP_DOCKER") == "1", "report local Docker containers so they can be picked as targets in the UI")
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traefikPath := flag.String("traefik", os.Getenv("BLACKTIP_TRAEFIK"), "path to a Traefik binary: serve http/https resources with Traefik instead of the built-in proxy")
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acmeDNS := flag.String("acme-dns", os.Getenv("BLACKTIP_ACME_DNS"), "with -traefik: DNS-challenge provider (e.g. cloudflare) for wildcard certificates; its credentials go in this process's environment")
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noACME := flag.Bool("no-acme", false, "with -traefik: serve Traefik's self-signed certificate instead of requesting Let's Encrypt ones")
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flag.String("env", ".env", "file to read secrets and settings from")
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autoUpdate := flag.Bool("auto-update", os.Getenv("BLACKTIP_AUTO_UPDATE") == "1", "check for new releases every few hours and update and restart by itself (Linux and macOS)")
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showVersion := flag.Bool("version", false, "print the version and exit")
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flag.Parse()
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if *showVersion {
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os.Stdout.WriteString("blacktip " + version + "\n")
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return
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}
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if *hh == "" || *token == "" {
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flag.Usage()
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os.Exit(2)
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}
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upd := selfupdate.Config{Server: "https://git.veillax.com", Repo: "Veillax/blacktip", App: "blacktip", Current: version, Logf: log.Printf}
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b, err := blacktip.New(blacktip.Config{
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Hammerhead: strings.TrimRight(*hh, "/"), Token: *token, TunnelAddr: *tun, DataDir: *data, Docker: *dockerOn,
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Traefik: blacktip.TraefikConfig{Path: *traefikPath, ACMEDNS: *acmeDNS, NoACME: *noACME},
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Version: version, AutoUpdate: *autoUpdate,
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UpdateNow: func(ctx context.Context, progress func(string, int, string)) (string, error) {
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c := upd
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c.Progress = func(e selfupdate.Event) { progress(e.Stage, e.Pct, e.Line) }
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return selfupdate.CheckOnce(ctx, c)
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},
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})
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if err != nil {
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log.Fatal(err)
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}
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log.Printf("blacktip %s starting", version)
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ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
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defer stop()
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if *autoUpdate {
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go selfupdate.Run(ctx, upd)
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}
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if err := b.Run(ctx); err != nil {
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log.Fatal(err)
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}
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}
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